Which movement sought to reform the political, social, and economic systems in the late 19th century?

The Progressive Movement is correctly identified as the reform movement that sought to address various issues in the political, social, and economic systems during the late 19th century. This movement emerged as a response to the rapid industrialization and the accompanying social challenges, such as urban poverty, labor exploitation, and corrupt political practices. Progressives advocated for a range of reforms, including the regulation of corporations, labor rights, women's suffrage, and improved public health and education. They aimed to create a more equitable society through various reforms that enhanced democratic participation and sought to improve the living conditions of the working class.

The Civil Rights Movement primarily focused on ending racial segregation and discrimination, particularly in the mid-20th century, rather than addressing the broader systemic issues that characterized the Progressive Movement. The Labor Movement, while also focused on improving working conditions and labor rights, was more specifically centered on the rights of workers and unions, without the wide-ranging political and social reforms associated with Progressivism. The Women's Suffrage Movement was crucial in advancing women's rights, specifically the right to vote, but it was one aspect of the broader Progressive Movement and did not encompass the entirety of political and social reforms that Progressives sought.